Quote:
Originally Posted by redpoint5
There's some point between the size of a sedan and the size of a locomotive that a series design begins to make sense. Full-sized pickup trucks with 10 speed transmissions may benefit.
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The Ford Hybrid has a 10 speed transmission because it is a single motor hybrid with the motor sandwiched between the engine and transmission. Far easier to do (and likely cheaper) than building a dedicated hybrid powertrain like the one found in your Prius.
Yes, giant mining trucks are series hybrids. They are also very slow speed vehicle. From what I've read the efficiency benefit of driving the wheel directly is at highway speeds.